21958970

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{2243}}^1$

素因数の和:2350

約数の個数: 32

約数和(自身を含む): 43623360

約数和(自身を除く): 21664390

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 178, 445, 890, 979, 1958, 2243, 4486, 4895, 9790, 11215, 22430, 24673, 49346, 123365, 199627, 246730, 399254, 998135, 1996270, 2195897, 4391794, 10979485, 21958970]

約数ペア:

[(1, 21958970), (2, 10979485), (5, 4391794), (10, 2195897), (11, 1996270), (22, 998135), (55, 399254), (89, 246730), (110, 199627), (178, 123365), (445, 49346), (890, 24673), (979, 22430), (1958, 11215), (2243, 9790), (4486, 4895)]